What are rights? Where do they come from? And how do we know it? Ayn Rand's answers to these questions form the indispensable foundation of a fully free, fully civilized society. In this talk, Craig Biddle presents the essentials of Rand's theory of rights, showing how its principles are derived from perceptual reality; differentiating it from traditional theories, including "God-given" rights, "government-granted" rights, and "natural" rights; and explaining why advocates of liberty and laissez-faire capitalism must embrace Rand's theory if they wish to succeed in establishing and maintaining freedom.